Type: Chapter (Book)
Title: An interactive evacuation tool to improve the public flood perception
Authors: Li, W.L.
Treff, N.
Amann, Friederike
Lehmen, J.
Dehbi, Youness 
Haunert, Jan Henrik
Source: ISPRS Geospatial Week 2023
Issue Date: 13-Dec-2023
Keywords: Flood mapping; Route planning; Evacuation tool; Rescue management; Risk perception
The advancing climate change increases the danger of heavy rainfall events and devastating floods, which significantly threaten people’s lives and properties. Geographic information system (GIS) has been a valuable tool for mapping flood risks and emergency management worldwide. In this paper, we develop an interactive evacuation tool to improve public flood perception. This work presents how to create an interactive and animated evacuation tool to strengthen the population’s preparedness and action ability in case of a flood. We simulate water depths and flow velocities for a flood scenario in Bonn, Germany. Afterwards, we investigate the flood’s impact on buildings and streets for different flood situations using geoinformation tools in the software QGIS. Based on thresholds from the literature, we identify endangered buildings where inhabitants have to evacuate and streets still ensuring safe locomotion options during the advancing flood. Taking possible shelter points for the population into account then allows for computing the shortest path to the nearest shelter at each flood situation. Our findings are summarized in evacuation maps that can be used together as interactive information tools for the public and can also serve rescue management and disaster education.
Subject Class (DDC): 550: Geowissenschaften
HCU-Faculty: Computational Methods 
Start page: 437
End page: 442
Publisher: Copernicus
Part of Series: International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 
Volume number: XLVIII-1/W2-2023
Publisher DOI: 10.5194/isprs-archives-XLVIII-1-W2-2023-437-2023
URN (Citation Link): urn:nbn:de:gbv:1373-repos-12421
Directlink: https://repos.hcu-hamburg.de/handle/hcu/965
Language: English
Creative Commons License: https://creativecommons.org/licenses/by/4.0/
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